//package com.patrol.auth.jwt;
//
//
//import com.patrol.auth.pojo.AdminUser;
//import com.patrol.auth.service.AdminUserService;
//import com.patrol.utils.JWTUtil;
//import lombok.extern.slf4j.Slf4j;
//import org.apache.shiro.authc.AuthenticationException;
//import org.apache.shiro.authc.AuthenticationInfo;
//import org.apache.shiro.authc.AuthenticationToken;
//import org.apache.shiro.authc.SimpleAuthenticationInfo;
//import org.apache.shiro.authz.AuthorizationInfo;
//import org.apache.shiro.authz.SimpleAuthorizationInfo;
//import org.apache.shiro.realm.AuthorizingRealm;
//import org.apache.shiro.subject.PrincipalCollection;
//import org.springframework.beans.factory.annotation.Autowired;
//import org.springframework.stereotype.Service;
//
//import java.util.Arrays;
//import java.util.HashSet;
//import java.util.Set;
//
///**
// * @author 房梦豪
// * @version 1.0
// * @description: TODO
// * @date 2021/9/28 15:55
// */
//@Slf4j
//@Service
//public class MyRealm extends AuthorizingRealm {
//
//    @Autowired
//    private AdminUserService userService;
//
//    @Override
//    public boolean supports(AuthenticationToken token) {
//        return token instanceof com.fmh.jwt.JWTToken;
//    }
//
//    /**
//     * 只有当需要检测用户权限的时候才会调用此方法，例如checkRole,checkPermission之类的
//     */
//    @Override
//    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principalCollection) {
////        获取token中的username
////        String username = JWTUtil.getUsername(principalCollection.toString());
////
////        AdminUser user = userService.selectUserByUserName(username);
////
////        SimpleAuthorizationInfo simpleAuthorizationInfo = new SimpleAuthorizationInfo();
//////        添加角色
//////        simpleAuthorizationInfo.addRole(user.getAuthority());
//////        将权限分割存入set集合
//////        Set<String> permission = new HashSet<>(Arrays.asList(user.getPermission().split(",")));
//////        添加权限集合
////        simpleAuthorizationInfo.addStringPermissions(null);
//
//        return null;
//    }
//
//    /**
//     * 默认使用此方法进行用户名正确与否验证，错误抛出异常即可。
//     */
//    @Override
//    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken auth) throws AuthenticationException {
////        获取证书
//        String token = (String)auth.getCredentials();
////        解密获得username，用于和数据库进行对比
//        String username = JWTUtil.getUsername(token);
//
//        if (username == null) {
//            throw new AuthenticationException("token invalid");
//        }
//
//        AdminUser user = userService.selectUserByUserName(username);
//        if (null == user) {
//            throw new AuthenticationException("user didn't existed");
//        }
//
//        if (!JWTUtil.verify(token, username, user.getPassword())) {
//            throw new AuthenticationException("username or password is error");
//        }
//
//        return new SimpleAuthenticationInfo(token, token, "my_realm");
//    }
//}
